Nielsen Hayden genealogy
Family: William de Strickland / Elizabeth d'Eyncourt (F16862)
m. Jun 1239-
Father | Male
William de Strickland
Born Died 1306 Buried Married Jun 1239 [1, 2, 3, 4] Father Robert de Strickland | F16863 Group Sheet Mother
Mother | Female
Elizabeth d'Eyncourt
Born Died Between 1272 and 1274 Buried Father Ralph d'Eyncourt | F16864 Group Sheet Mother Alice | F16864 Group Sheet
Child 1 | Male
+ Walter de Strickland
Born of Sizergh, Westmorland, England 
Died Abt 1342 Buried Spouse Eleanor de Goldington | F16861 Married Between 1295 and 1296
Child 2 | Female
Joan de Strickland
Born Died Aft 1323 Buried Spouse Robert de Washington | F16873 Married 1292
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Sources - [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.
- [S4038] S. H. Lee Washington, "Genealogical Research in England: The Early History of the Stricklands of Sizargh, Ancestors of the Carletons of Massachusetts and the Washingtons of Virginia." Part II. The New England Historical and Genealogical Register 96:307, Oct 1942.
- [S47] The History of Parliament. Some citations point to entries from the printed volumes not yet added to the online site., year only.
- [S4042] The Early History of the Stricklands of Sizergh by S. H. Lee Washington. Boston: The Rumford Press, 1942.
- [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.